МУИС, Химийн тэнхим
Лугийн гол, Мушгиа худгийн газрын ховор элементийн хүдрийн
химийн найрлага болон эрдсийн бүрэлдэхүүний харьцуулалт
илтгэгч Б.Сүхбаатар
2024-09-11
1
- https://en.institut-seltene-erden.de/rare-earths-and-metals/rare-earth/
2
-Callura, Jonathan C., et al. "Selective adsorption of rare earth elements onto
functionalized silica particles." Green Chemistry 20.7 (2018): 1515-1526.
3
-Zhang, Wencai, and Rick Q. Honaker. "Rare earth elements recovery using
staged precipitation from a leachate generated from coarse coal refuse."
International Journal of Coal Geology 195 (2018): 189-199.
4
-Hassas, Behzad Vaziri, Mohammad Rezaee, and Sarma V. Pisupati.
"Effect of various ligands on the selective precipitation of critical and rare earth
elements from acid mine drainage." Chemosphere 280 (2021): 130684.
Oxides
MK LG
Oxides
MK LG
Oxides
MK LG
% % %
F 3.128 1.026 MnO 7.611 0.265 BaO 0.244
Na
2
O 0.36 8.932 Fe
2
O
3
8.751 4.631 La
2
O
3
0.954
MgO 1.721 0.201 ZnO 0.08 0.115 CeO
2
1.353 0.043
Al
2
O
3
4.341 12.848 Ga
2
O
3
0.007 Pr
2
O
3
0.234
SiO
2
11.437 64.97 Rb
2
O 0.023 0.042 Nd
2
O
3
0.894 0.063
P
2
O
5
0.508 0.096 SrO 0.522 0.005 PbO 0.154 0.035
SO
3
0.26 0.065 Y
2
O
3
0.065 0.098 ThO
2
0.039 0.018
K
2
O 2.56 3.009 ZrO
2
1.357 Bi
2
O
3
0.005
CaO 54.1 1.372 MoO
3
0.021 HfO
2
0.053
TiO
2
0.64 0.591 Nb
2
O
5
0.154
Metal
Elements
MK LG
Rare Earth
Elements
MK LG
Content (mg/g) Content (mg/g)
Ca 92.65 5.21 La 7.38 0.22
Zn 9.46 10.15 Ce 12.23 0.84
Mg 3.20 0.04 Pr 0.82 0.02
Pb 14.72 15.91 Nd 2.96 0.19
Cu 0.04 0.04 Sm 0.48 0.17
Ni 0.02 0.01 Eu 0.06 //
Co 0.32 0.31 Gd 0.75 0.72
Ba 0.39 0.07 Tb 0.01 0.03
Fe 16.19 16.00 Dy 0.09 0.08
Mn 18.85 1.37 Ho / 0.01
Sr 1.66 0.02 Er / 0.08
Al 6.89 21.67 Tm 0.07 0.07
K 73.00 10.47 Yb 0.02 0.05
Ga 0.16 0.04 Lu 0.00 0.01
Rb 71.36 74.14 Y 0.23 0.47
Na 25.21 36.22 Sc 0.01 /
Fig. 2. XRD pattern of REE ore samples in the two deposits
(a) MK: Mushgai Khudag deposit, (b) LG: Lugiin Gol deposit.
Fig. 4. The TIMA false-colored mineral phase map of the REE ore sample (A) MK and (B) LG.
Fig. 5. The TIMA calculated the mass of mineral phases
of the REE ore sample (A) MK and (B) LG.
Fig. 6. The TIMA calculated the mineral association percentage of REE-bearing minerals in the studied
REE ore deposits in Mongolia. (A) Bastnaesite and Parisite in the MK sample and
(B) Bastnaesite and Cerium-Amphibole mixed oxide in the LG sample.
Table 3
Mineral liberation classes by free surface of the REE ore in TIMA analysis of the Mushgai Khudag deposit.
Liberation
(%)
1 2 3 4 5 6 7 8 9 10 11 12 13
<10 21.41 9.37 19.54 1.01 12.62 31.34 42.27 14.10 6.12 0.00 24.86 2.18 1.23
≥
10<20
1.62 7.79 5.80 1.57 13.29 24.49 32.72 13.27 7.39 0.00 28.60 3.31 0.00
≥
20<30
4.98 6.88 4.98 2.40 13.83 11.07 8.58 18.30 11.19 0.00 27.98 3.38 0.00
≥
30<40
28.00 11.17 6.44 2.21 14.16 20.62 1.12 20.63 17.91 0.00 0.48 7.69 0.18
≥
40<50
12.06 3.96 7.42 2.11 14.39 0.38 0.21 9.57 7.23 0.00 5.20 6.98 0.00
≥
50<60
6.84 2.22 3.53 5.06 10.88 0.00 6.81 5.24 5.36 0.00 8.66 6.74 0.00
≥
60<70
0.71 5.68 0.27 14.00 4.26 0.00 0.13 2.38 9.45 0.00 0.05 9.86 17.32
≥
70<80
9.29 9.38 20.01 10.97 7.11 3.53 0.57 0.05 14.61 0.00 2.24 11.93 2.46
≥
80<90
13.51 13.67 6.72 8.86 1.80 4.59 5.17 0.13 11.29 0.00 0.31 27.03 0.01
≥
90
1.58 29.88 25.28 51.82 7.66 3.99 2.42 16.34 9.46 100.00 1.63 20.91 78.80
1-Quartz, 2-Dolomite, 3-Iron oxide, 4-Calcite, 5-Manganese oxide, 6-Bastnaesite, 7-Ferromanganese oxide, 8-Aluminosilicate, 9-Parisite, 10-Barite,
11-Apatite, 12-Orthoclase, 13-Albite
Table 4
Mineral liberation classes by free surface of the REE ore in TIMA analysis of the Lugiin Gol deposit.
Liberation
(%)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
<10 45.28 20.28 5.01 5.04 14.68 0.85 7.82 9.42 18.96 2.32 9.99 42.42 45.38 36.67 38.24
≥
10<20
1.33 15.85 7.60 8.44 21.79 1.64 6.97 7.61 16.41 0.00 1.53 5.16 2.00 13.26 7.22
≥
20<30
0 23.75 10.18 8.71 23.13 2.83 8.10 7.19 5.21 16.33 5.18 27.75 36.99 16.94 21.35
≥
30<40
25.94 15.47 11.20 8.66 7.99 6.88 15.73 5.62 0.00 0.02 6.08 0.00 1.33 9.50 5.04
≥
40<50
0 4.96 7.15 8.45 5.80 10.99 16.17 8.68 20.37 10.87 1.73 0.00 5.06 5.50 0.04
≥
50<60
11.12 2.38 9.45 8.72 1.79 12.89 8.03 5.81 0.00 0.00 0.00 9.69 0.00 9.27 1.05
≥
60<70
0.08 1.27 8.59 7.18 1.94 16.17 2.40 2.89 7.20 0.00 0.80 0.00 3.16 0.81 8.31
≥
70<80
5.58 5.46 7.17 7.85 3.58 11.31 11.95 8.12 5.80 0.00 11.47 0.00 0.00 0.27 0.00
≥
80<90
0 5.82 7.57 21.65 0.17 13.27 10.52 7.64 4.18 25.26 1.88 12.60 5.93 1.39 8.78
≥
90
10.67 4.76 26.08 15.31 19.13 23.17 12.30 37.02 21.85 45.19 61.34 2.38 0.14 6.39 9.97
1-Bastnaesite, 2-Iron oxide (containing Mn), 3-Quartz, 4-Orthoclase, 5-Calcite, 6-Albite, 7-Catapleiite/Khibinskite, 8-Amphibole, 9-Niobium ore (Ce
5-10%), 10-Perovskite (Si/Fe/Al/Mn), 11-Zircon, 12-Andradite, 13-Rutile, 14-Aluminosilicate, 15-Cerium-Amphibole mixed oxid
Fig. 7. BSE images of the Mushgai Khudag (A) and Lugiin gol deposits (B).
Fig. 8. BSE image results of REE-bearing minerals in the Mushgai Khudag deposit.
Or: orthoclase, Par: parasite, Cal: calcite, Alu: aluminosilicate, Dol: dolomite
Fig. 9. BSE image results of REE-bearing minerals in the Lugiin Gol deposit.
Fig. 10. EDS pattern of the LG REE ore sample, (a) corresponded to point 1 in Fig.
9b; (b) corresponded to point 2 in Fig. 9b
Fig. 11. The binding and leaching characteristics of REE for REE ore samples from the
Mushgai Khudag (A) and Lugiin Gol deposits (B). Fraction 1: Exchangeable and weak
acid soluble; Fraction 2: Reducible; Fraction 3: Oxidizable; Fraction 4: Residual.
Fig. 3. The particle size distribution of REE ore samples.
1
all
c1
c2
x1
x2
x3
t1
t2
t3
t4
s1
s1a
s2
s3
s4
s5
s6
e1
e2
z